Refrigeration



REFRIGERATION Filed Dec. 4. 1937 WM jNVENTO,

afa/4 4Q'. ATTORNEY.

Patented Sept. 17, 1940 i UNITED sTATEs- PATENT oFFlcE clue@ 2Clams.(01.62-1085) My invention relates to grids for ice trays, The webs areconnected by means of threaded and the nature of my invention will beapparent bars 20 which are held by means of nuts 2l to from thefollowing description and particularly each of the webs. These passthrough holes 22 the accompanying drawing, wherein: in the webs. Thereis one on each side. These Fig. 1 is a top view of a tray and gridemmembers 20 are stiff and tie the wings or webs l bodying theinvention; together. Arms 23 have loops which are placed Fig. 2 is takenon the line 2-2 in Fig. 1; under certain of the nuts 2| as shown and theFig. 3 is taken on the line 3-3 in Fig. 1; other ends of arms 23 passinto holes in a handle Fig. 4 shows a detail; and 25 which is pivoted bymeans of a screw 26 on Figs. 5 and 6 show an alternative form. the topof bar II. By turning member 25 the m The grid sets in a pan I0 which isof usual grid is twisted so that Vthe webs I8 are moved form and made ofmetal, and which is adapted slightly for the release of the ice cubesfrom the to rest on the shelf of an evaporator in a regrid withoutnecessitating the application of frigerator. The grid includes alongitudinal heat. It will be seen that turning the handle 23 member IIextending the full length of the tray movesthe Webs in unison. u

longitudinally thereof. Member II is stiff and is It will be seen that Ihave provided a unitary made of a channel bar. It may be of brass,steel, metallic grid structure for disposition in a freezor other metal.The forward end of this bar II ing tray and removability therefrom as aunit. projects downwardly at I2 through an aperture The grid structurecomprises a longitudinal wall I3 in the front wall of the plate. Thelower end member which is made up of bar II and the zo y is closed atl4to provide an abutment'which members I9 or fila. In the form Shown inF18. can be engaged by a turnable member I5. Mem- 6 the longitudinalwall I9a need not be connected bei I5 is mounted to turn on a horizontalaxis to the member II but may be connected to the by means of a handleI6. If the handle I6 is webs. The parts hold themselves together dueturned in one direction the member I5 proto the soldering 01'l welding.The transverse Wall g5 jects downwardly below the bottom of the tray'members need be moved only slightly and thereto release the tray fromits supporting surface, fore need be only somewhat exible. Awhile onturning the handle IB in the opposite lWhitt I Gleim is:

direction the member I5 contacts the closed end 1- The COmbiIletiOh Witha freezing tray, 0f 8 M of the part l2 of channel ll to raise the chan.unitary metallic grid Structure for disposition in an nel AII andconsequently the grid from the tray to said tray and removable therefromas a unit release the frozen contents of the tray from the comprising alongitudinal member, a plurality tray.- Generally the device is used tofreeze of bendable webs connected therewith, a pluwater to form icecubes. On turning the handle rality of l arms pivotally connected tosaid longi- IIi so that the bar II is lifted the ice cubes retudinalmember, and means whereby movement '35 main attached to the grid and thegrid and ice of said arms causes a bending of said bendablc cubes areremoved from the tray as a unit. webs to free ice cubes therefrom.

Mounted on the bar IIl is a series of trans- 2. The combination with afreezing tray. of a verse webs I8. 'I'hese webs may extend conunitarymetallic gridstructure for dispositionin 40 tinuously from side to sideas shown in Fig. 6J said tray and removable therefrom as a unit como orthe same effect may be had by utilizing the prising a longitudinalmember extending subcontinuity of structure of the bar II as bysolderstantially the full length of the tray, va plurality ing orwelding these members to the bar ll, of distortable webs connectedtherewith, each in Depending downwardy from the bar It and expartmovable with respect to the longitudinal tending within its inside spaceis a U-shaped member, a plurality of arms pivotally mounted strip lewhich is also made of meta1 like the on said longitudinal member. andmeans whereother parts and which may be welded or soldered by movementof said arms causes force multiplito the bar II and also welded at itsends so that cefien t0 dStOl Said WebS- it is hermeticauy sealed. iROBERT LAY HALLocK.

